CVE-2026-27723: Openproject

Medium severity, CVSS 5.3. EPSS: 0.4% chance of exploitation in the next 30 days.

OpenProject is an open-source, web-based project management software. Prior to versions 17.0.5 and 17.1.2, an attacker can create wiki pages belonging to unpermitted projects through an improperly authenticated request. This issue has been patched in versions 17.0.5 and 17.1.2.

Affected products

• Openproject Openproject: before 17.0.5 (fixed in 17.0.5); from 17.1.0, before 17.1.2 (fixed in 17.1.2)

Published 2026-03-05. Last modified 2026-06-17.